Exercises

General Information

We require you to take part in the exercises and deliver your solutions to the tasks distributed in the lectures (see also Criteria). Each Tuesday, a task sheet will be distributed. For those, who missed to get one, we provide online versions of the sheets below.

You will also find accompanying material like m-files, data, etc. on these pages. Sometimes, we might give hints for the solution of your tasks.

Helpers

Lars Mentrup has collected two little helpers to get you started with MATLAB and Unix.

Exercise 4

Exercise 5

And a MATLAB m-file that allows to see the failure of high order interpolation on Runge's test case
Please Note: I added a modified version that should run now (including function polyinterp)rungeinterp.m (4KB)

Exercise 8

The solution to the first assignment with a LAPACK interface was hard to get. One possibility is to get the Lapack for MATLAB package and compile the corresponding mex-files. The other possibility is to download my solution in the following zip-file. It works for MATLAB version 7.0.4 on an Intel Pentium M based Laptop. You might want to recompile the two dynamic load libraries (dlls) by issuing the commands mex dgeqrf.c and mex dormqr.c (possibly with appropriate options, see the MATLAB documentation).